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Functions
Callback Functions

Callback Functions. More...

Functions

globus_result_t globus_gsi_callback_get_X509_STORE_callback_data_index (int *index)
 Get callback data index from X509_STORE. More...
 
globus_result_t globus_gsi_callback_get_SSL_callback_data_index (int *index)
 Get callback data index from SSL structure. More...
 
int globus_gsi_callback_X509_verify_cert (X509_STORE_CTX *context, void *arg)
 Certificate verify wrapper. More...
 
int globus_gsi_callback_create_proxy_callback (int preverify_ok, X509_STORE_CTX *x509_context)
 Independent path validation callback. More...
 
int globus_gsi_callback_handshake_callback (int preverify_ok, X509_STORE_CTX *x509_context)
 SSL path validation callback. More...
 
int globus_gsi_callback_check_issued (X509_STORE_CTX *context, X509 *cert, X509 *issuer)
 OpenSSL X509_check_issued() wrapper. More...
 

Detailed Description

Callback Functions.

Functions that plug into various plug points in the OpenSSL path validation mechanism. These functions add CRL checking, X509 Extension handling and proxy validation.

Function Documentation

int globus_gsi_callback_check_issued ( X509_STORE_CTX *  context,
X509 *  cert,
X509 *  issuer 
)

OpenSSL X509_check_issued() wrapper.

This function wraps the OpenSSL X509_check_issued() call and catches the error caused by the fact that a proxy certificate issuer may not have to have the correct KeyUsage fields set.

Parameters
contextThe validation state object.
certThe certificate to check
issuerThe issuer certificate to check
Returns
1 on success 0 on failure
int globus_gsi_callback_create_proxy_callback ( int  preverify_ok,
X509_STORE_CTX *  x509_context 
)

Independent path validation callback.

This function provides a path validation callback for validation outside of a SSL session. It should be used in X509_STORE_set_verify_cb_func().

Parameters
preverify_okCommunicates the result of default validation steps performed by OpenSSL
x509_contextThe validation state object
Returns
1 on success 0 on failure
globus_result_t globus_gsi_callback_get_SSL_callback_data_index ( int *  index)

Get callback data index from SSL structure.

Retrieve or create the index for our callback data structure in the SSL structure.

Parameters
indexWill contain the index upon return
Returns
GLOBUS_SUCCESS unless an error occurred, in which case, a globus error object ID is returned
globus_result_t globus_gsi_callback_get_X509_STORE_callback_data_index ( int *  index)

Get callback data index from X509_STORE.

Retrieve or create the index for our callback data structure in the X509_STORE.

Parameters
indexWill contain the index upon return
Returns
GLOBUS_SUCCESS unless an error occurred, in which case, a globus error object ID is returned
int globus_gsi_callback_handshake_callback ( int  preverify_ok,
X509_STORE_CTX *  x509_context 
)

SSL path validation callback.

This function provides a path validation callback for the validation part of establishing a SSL session. It handles proxy certificates, X509 Extensions and CRL checking. It should be used in SSL_CTX_set_verify().

Parameters
preverify_okCommunicates the result of default validation steps performed by OpenSSL
x509_contextThe validation state object.
Returns
1 on success 0 on failure
int globus_gsi_callback_X509_verify_cert ( X509_STORE_CTX *  context,
void *  arg 
)

Certificate verify wrapper.

This function wraps the OpenSSL certificate verification callback for the purpose of a replacing the standard issuer check with one that deals with proxy certificates. Should be used with SSL_CTX_set_cert_verify_callback()

Parameters
contextThe X509_STORE_CTX for which to register the callback.
argArguments to the callback. Currently ignored.
Returns
1 on success 0 on failure